//
//  DraftViewModel.m
//  Knowbox
//
//  Created by LiuXubin on 14/11/21.
//  Copyright (c) 2014年 knowin. All rights reserved.
//

#import "SimDrawViewModel.h"

@implementation SimDrawViewModel

- (id)init
{
    self = [super init];
    if (self) {
        _pathArray = [NSMutableArray array];
        _deleArray = [NSMutableArray array];
        _isClear = NO;
    }
    
    return self;
}

- (BOOL)hasUpdate
{
    if (_pathArray.count > 0 ||
        _isClear ||
        _preImage != nil) {
        return YES;
    }
    
    return NO;
}

@end
